Players · M · Pitcher · 2007 regular season
Julio Mateo
- Age
- 30
- B/T
- R/R
- Height
- 5' 11"
- Weight
- 235 lb
- Number
- #40
- Born
- August 2, 1977 in Bani, Dominican Republic
- MLB debut
- May 7, 2002
- dbWAR
- .6 Regular season, 2005–2007 only
- IP
- 12.0
- ERA
- 3.75
- FIP
- 3.82
- K/9
- 3.0
- FIP−
- 85 100 = avg
Julio Mateo was a relief pitcher for the Seattle Mariners. In 2007 he struck out 4 batters over 12.0 innings across 9 appearances, going 1-0. His ERA of 3.75 was 16.2% lower than the league average of 4.47. Stripping out defence, his 3.82 FIP suggests the ERA was no fluke. He missed bats on 17.5% of swings (9.3% of every pitch he threw), walked 9.6% of the batters he faced and struck out 7.7%. His 0.2 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.
League context
Percentile among qualified pitchers, 2007 regular season.
WAR by season
Pitching Regular season
Standard and advanced, by season. Regular-season games only. Seasons on file run 2005–2007; his career began in 2002, and earlier seasons are not in this data yet.
Platoon splits
How left- and right-handed hitters fare against him.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 19 | 15 | 3 | 0 | 4 | 1 | .200 | .368 | .200 | .271 | 5.3% |
| vs RHB | 33 | 32 | 9 | 0 | 1 | 3 | .281 | .303 | .375 | .303 | 9.1% |
Not in the 2007 data: pitch types, recorded in every park from 2008. The play-by-play goes back to 2005, but the measurements on each pitch and batted ball arrived later, so the panels built from them are left off this season.
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wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.